Wont start..like i have NO battery

You need a multimeter to test anything electrical. Today's newspaper has free coupon for one at Harbor Freight, but I already have 7 of those (one in each car).

As mentioned, all current from the battery to the cabin flows thru the dash ammeter, so if that connection is bad, you get nothing to the fuse box. Underhood loads like horn and starter relay would still have power. Does your horn work? If so, you can probably turn over the starter by applying 12 V from the big stud on the relay to the small spade terminal with the yellow wire. The engine won't fire though since no ignition power.